[NEPAbowhunter]

They flew like field points from both my crossbows. Crossbow Killzones come with practice blades. You have to take one apart and install the one piece practice blade. I shot them last year with no issues. Killed a few deer with them. Big hole going in and big hole going out. I bought nine or twelve of them. Some did not spin true on my ball bearing spinner, they got put on the no fly list. I feel they are a one and done head, similar to Rage. That being said, I would shot them any day of the week as long as they spin true on my arrow spinner. This year I am trying the Rage crossbow hypodermics. The durability of 2 blade mechanicals like the Killzone and Rages is not the best, but they do what they are made for. They produce BIG holes in deer. Blowing thru a deer and smashing into the ground tends to put a hurting on them. I just retire that head and screw on a new one.